"Based on where we are with our pitching staff and the fact that we feel comfortable with our depth, we wanted to give Adam every opportunity to pitch with another club, rather than wait until later in the spring when it gets more difficult," Senior Vice President & General Manager Ruben Amaro Jr. said in a statement.
Eaton, 31, was 14-18 with a 6.10 ERA in 51 games for the Phillies. He came to the team after signing a three-year, $24.5 million contract with the Phillies before the 2007.
Eaton's lifetime record is 68-63 with a 4.80 ERA . He's played 9 seasons with the Phillies, Padres and Rangers.